Adjustable slicer



FIG. 1 is a top perspective view of the adjustable slicer of the present invention showing my new design with the broken lines depicting solely environmental structure and forming no part of the claimed design;

FIG. 2 is a rear end view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is side elevational view thereof;

FIG. 5 is front end view thereof; and,

FIG. 6 is bottom plan view thereof. 

The ornamental design for an adjustable slicer, as shown and described. 